Meyerhofferite

A variety of Minerals

Meyerhofferite specimen

What is Meyerhofferite?

Meyerhofferite is a hydrated borate mineral of calcium, with the chemical formula Ca2B6O6(OH)10·2H2O, CaB3O3(OH)5·H2O or Ca2(H3B3O7)2·4H2O. It occurs principally as an alteration product of inyoite, another borate mineral. Natural meyerhofferite was discovered in 1914 in Death Valley, California It is named for German chemist Wilhelm Meyerhoffer (1864–1906), collaborator with J. H. van't Hoff on the composition and origin of saline minerals, who first synthesized the compound.

Market Value Factors

Pricing varies for every rock and mineral, so use these universal factors to gauge Meyerhofferite before comparing listings or appraisals.

Size & Weight

Larger, intact specimens usually command higher prices.

Rarity & Demand

Scarce material or popular varieties sell at a premium.

Condition & Finish

Chips, repairs, and heavy wear lower value; clean prep helps.

Treatment & Provenance

Untreated specimens with documented locality are prized.

Applies to all rocks & minerals.

Quick Facts

Physical Properties

Color
Colourless, white
Hardness (Mohs)
2
Rock tumbling
Not recommended
Density
2.116 g/cm³

Chemical Properties

Chemical Formula
Ca2(H3B3O7)2 · 4H2O
Elements
B, Ca, H, O
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Meyerhofferite FAQs

How do I identify Meyerhofferite?

Meyerhofferite can be identified by its hardness of 2 on the Mohs scale, Colourless color. Look for these key characteristics when examining specimens.

What color is Meyerhofferite?

Meyerhofferite typically appears in Colourless, white. Color can vary depending on impurities and formation conditions.

How hard is Meyerhofferite?

Meyerhofferite has a hardness of 2 on the Mohs scale. This makes it a soft mineral that can be scratched easily.

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